81 | Add to Reading ListSource URL: www.sinano.euLanguage: English - Date: 2011-03-15 10:22:28
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82 | Add to Reading ListSource URL: www.nsti.orgLanguage: English - Date: 2010-03-19 15:28:05
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83 | Add to Reading ListSource URL: www.nsti.orgLanguage: English - Date: 2010-03-19 15:18:44
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84 | Add to Reading ListSource URL: www.nsti.orgLanguage: English - Date: 2010-03-19 15:37:59
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85 | Add to Reading ListSource URL: www.nsti.orgLanguage: English - Date: 2010-03-19 15:24:04
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86 | Add to Reading ListSource URL: www.metaloids.comLanguage: English - Date: 2010-09-08 10:30:30
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87 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-03-06 12:51:57
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88 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-03-30 09:48:12
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89 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-01-19 09:03:28
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90 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-12-18 14:13:56
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